101

You visited us 101 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Position Vector

Two parallel ...

Question

Two parallel rail tracks run north-south. Train A moves north with a speed of 54 km/h and train B moves south with a speed of 90 km/hr. What is the velocity of a monkey running on the roof of the train A against its motion (with its velocity of 18 km/h with respect to the train A) as observed by a man standing on the ground?

36 km/hr - North

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

36 km/hr - South

No worries! We‘ve got your back. Try BYJU‘S free classes today!

72 km/hr - North

No worries! We‘ve got your back. Try BYJU‘S free classes today!

72 km/hr - South

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
36 km/hr - North

$\to v m o n k e y g r o u n d = ? {\to v}_{m g} = {\to v}_{m A} + {\to v}_{A g} = 18 - 54 = - 36 k m / h r$
Hence velocity of monkey will be 36 km/hr towards north.

Suggest Corrections

Similar questions

Q. To parallel rail track an north south. Train

A

moves north with a speed of

54 k m / h

and train

B

moves south with a speed of

90 k m / h

. What is the
Velocity of

B

with respect to capital

A

?
Velocity of ground with respect to

B

?
Velocity of monkey running on the roof of train

A

against its motion with a velocity of

18 k m / h

with respect to the train

A

as observe by man standing on the ground?

Q. Two parallel rail tracks run north-south. Train A moves north with a speed of 54

k m h^{- 1}

and train B moves south with a speed of 90

k m h^{- 1}

, What is the
a. the relative velocity of B with respect to A?
b. the relative velocity of the ground with respect to B?
c. a velocity of a monkey running on the roof of the train A against its motion (with its velocity of 18

k m h - 1

with respect to the train A) as observed by a man standing on the

Q. A train moves in north direction with a speed of

54 k m / h

. A monkey is running on the roof of the train, against its motion with a velocity of

18 k m / h .

with respect to train. The velocity of monkey as observed by a man standing on the ground facing towards monkey is :

Q. Two parallel rail tracks run north-south. On one track train A moves north with a speed of 54 km

h^{- 1}

and on the other track train B moves south with a speed of 90 km

h^{- 1}

. The velocity of train A with respect to train B is :

Q. Two parallel railway track run north-south. Train A moves to north with a speed of 54

k m h^{- 1}

and train B moves to south with a speed of

90 k m h^{- 1}

A monkey is running on the roof of train A against its motion with a velocity of 1 8

k m h^{- 1}

as obtained by a person standing on the ground

.

Join BYJU'S Learning Program

The correct option is A 36 km/hr - North →v monkey ground=?→vmg=→vmA+→vAg=18−54=−36 km/hr Hence velocity of monkey will be 36 km/hr towards north.

The correct option is A
36 km/hr - North

$\to v m o n k e y g r o u n d = ? {\to v}_{m g} = {\to v}_{m A} + {\to v}_{A g} = 18 - 54 = - 36 k m / h r$
Hence velocity of monkey will be 36 km/hr towards north.